This is an IBM Transistor Logic SMS Printed circuit board. Called (and looks) vintage, but don't know the exact year.
I'm not saying this is OMG the part...
But you have to admit, it's one of the closest you've seen, right? Laid out here by Roy's ESB card.
And on the back side-- TI transistors that are about the exact same size as the replicas Roman makes available.
I'm not saying this is OMG the part...
But you have to admit, it's one of the closest you've seen, right? Laid out here by Roy's ESB card.
And on the back side-- TI transistors that are about the exact same size as the replicas Roman makes available.